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(No Model.) 2 Sheets-Sheet 1..

v. ANGERER.

HOIST. No. 406,251. I Patented July 2, 1889.

FIG/.1.

u. PETERS. Fhclc-Lqlmgmphcn Washinglnn. 0 cv UNITED STATES PATENT OFFICE.

VICTOR ANGERER, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THE WVILLIAM VVHARTON, J R., & COMPANY, INCORPORATED, OF SAME PLACE.

HOlST.

I SPECIFICATION forming part of Letters Patent No. 406,251, dated July 2, 1889. Application filed February 21, 1887. $erial1l'o. 228,339. (No model.)

To all whom it may concern.-

Be it known that I, VICTOR ANGERER, a subject of the Emperor of Austria, and a resident of Philadelphia, Pennsylvania, have in- 5 vented certain Improvements in Hoists, of

which the following is a specification.

The object of my invention is to construct a simple and effective brake for geared hoists, and this object I attain in the manner herein- IO after set forth,reference being had to the accompanying drawings, in which- Figure 1 is a transverse section of my improved hoist; and Fig. 2 is a side view looking in the direction of the arrow, Fig. 1.

From the hook A is suspended a frame B, made in two parts I) b, bolted together at 11 as shown in Fig. 1, and to the lower ends of said parts I) b of the frame is firmly secured by pins 19 p a cranked spindle C, made in one 20 piece, and having its arms 0 d in the same vertical plane, as shown in Fig. 1. The arm 0 of the spindle forms a bearing for the drivechain Wheel D, the latter being made in one piece with a pinion a, the teeth of which en- 2 5 gage with the teeth of an internal gear-wheel IV, which is cast with or forms part of the hoisting-chain drum E, the latter having its bearing on the arm cl of the crank-spindle. The crank-spindle also serves to bind the lower portions of the frame B firmly together and prevent spreading of the same. The open end of the internal gear-wheel WV is covered by a disk m, forming part of the chain-wheel D, and from the part b of the frame B pro- 3 5 j ects a finger G, which extends over the chaindrum E and prevents the hoisting-chain from jumping. The two drive-chain guides X and Y are pivoted to the portion 0 of the crankspindle C, and are held in position by a pin z.

On a stud projecting from the upper portion of the frame B is hung a brake-lever L, one arm Z of which is attached to a rope R, within easy reach of the operator, the other arm Z being provided with a brakeshoe s,

which can be adjusted by means of a setscrew 2. This brake-shoe s bears against the rim-flange f of the chain-wheel D, and when power is applied to the arm Z of the lever L the wheel D is moved laterally, so as to force the rim-flange f against a brake-shoe T, set in the portion Z) of the frame of the hoist, this shoe being adjusted as required by means of a set-screw t.

This hoist is what may be termed a quick hoist, and as it is often desirable to stop the 5:; chain-drum at a given point a quick-acting and powerful brake is necessary.

It will be evident that by the clamping of the rim portion of the drive-chain wheel D between the brake-shoess and T such abrake is provided.

I claim as mv invention 1. The combination, in a hoist, of the chaindrum and its operating-wheel, a frame therefor, and a brake-block carried by said frame upon one side of the operating-wheel, with a brake-block upon the opposite side of the rim of said Wheel carried by a lever hung to the frame, the operation of said lever causing the lateral movement of the wheel against 7c the brake-block carried by the frame, substantially as specified.

2. The combination, in a hoist, of the fixed frame made in two parts, and a crank-spindle secured to the frame and having two arms both 7 5 in the same Vertical plane, one arm carrying the chain-drum and its gear-Wheel, and the other arm carrying the drive-chain wheel and its pinion, with a brake-lever hung to said frame and carrying upon one of its arms a brake-block adapted to act against the rim of the drive-chain wheel, substantially as specified.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

VICTOR ANGERER.

Witnesses:

HENRY HoWsoN, HARRY SMITH. 

